Craftsman Standard SAE and Metric Reversible Ratcheting Combination Wrench Se... 72-tooth ratcheting mechanism rotates fast with only 5 degrees of swing Ratcheting box end speeds up work with 12 points for better contact and improved torque The set includes seven inch sizes: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16 The other seven wrenches are metric: 8, 10, 12, 13, 14, 15, 17 mm Box end is offset 12 degrees